Endoscopy, Table of Contents Endoscopy 2014; 46(S 01): E533DOI: 10.1055/s-0034-1377638 Cases and Techniques Library (CTL) © Georg Thieme Verlag KG Stuttgart · New YorkPrimary syphilitic chancre in the rectum Authors Author Affiliations Israel Grilo Bensusan Digestive Diseases Department, Hospital de Alta Resolución de Écija, Sevilla, Spain Leonor Gómez-Regife Digestive Diseases Department, Hospital de Alta Resolución de Écija, Sevilla, Spain Recommend Article Abstract Full Text References References 1 Song SH, Jang I, Kim BS et al. A case of primary syphilis in the rectum. J Korean Med Sci 2005; 20: 886-887 2 Bassi O, Cosa G, Colavolpe A et al. Primary syphilis of the rectum–endoscopic and clinical features. Report of a case. Dis Colon Rectum 1991; 34: 1024-1026 3 Febbraro I, Manetti G, Balestrieri P et al. Rectal cancer or rectal chancre? Beware of primary syphilis. Dig Liver Dis 2008; 40: 579-581 4 Zhao WT, Liu J, Li YY. Syphilitic proctitis mimicking rectal cancer: A case report. World J Gastrointest Pathophysiol 2010; 1: 112-114 5 Tigchelaar CK, Brosens LA, Seldenrijk CA. An unusual rectal mass. Gastroenterology 2012; 143: 16-17